Effects of Residual Solvent on Glass Transition Temperature of Poly(methyl methacrylate)

被引：14

作者：

Ito, Asae ^{[1
]}

Ayerdurai, Viknasvarri ^{[1
]}

Miyagawa, Azusa ^{[1
]}

Matsumoto, Akikazu ^{[2
]}

Okada, Haruki ^{[2
]}

Courtoux, Antoine ^{[3
]}

Yamaguchi, Masayuki ^{[1
]}

机构：

[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, 1-1 Asahidai, Nomi, Ishikawa 9231292, Japan

[2] Mitsubishi Chem Corp, 20-1 Miyuki Cho, Otake, Hiroshima 7390693, Japan

[3] Engn Sch Chem & Adv Mech, SIGMA Clermont Campus Cezeaux, F-63178 Aubiere, France

来源：

NIHON REOROJI GAKKAISHI | 2018年 / 46卷 / 03期

基金：

日本科学技术振兴机构;

关键词：

Glass transition temperature; Rheology; Thermal properties; Thermoplastics; Viscosity and viscoelasticity; VISCOELASTIC PROPERTIES; CONCENTRATED-SOLUTIONS; MOLECULAR-DYNAMICS; BLEND FILMS; WATER; PMMA;

D O I：

10.1678/rheology.46.117

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The effects of residual solvent on the glass transition temperature (Tg) of poly(methyl methacrylate) (PMMA) were studied. A small amount of solvent in a film obtained by solution casting was found to remain even after vacuum evaporation for 30 h and compression -molding at 200 degrees C. The amount of residual solvent was less than 0.5 %, as revealed by gas chromatography. Therefore, this phenomenon is different from the plasticizing effect. A shift of the Tg to a lower temperature was attributed to strong ion-dipole interactions between the solvent molecules and the carbonyl group in PMMA molecules. Such interactions suppressed the associated states of PMMA, which greatly affected chain mobility.

引用

页码：117 / 121

页数：5

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